Question about gas tank vents 4 vs. 1

The four vent gas tank is a California emission model . You will have a separate tube in the trunk with five tubes at the bottom just behind the left rear wheel that match the tubes coming out of the gas tank.The fifth tubes runs to the front via 5/16 line to the engine compartment.From the end of the tube a rubber vent line is run to a nipple on the engine breather.The fuel filler is different on a four vent gas tank as well.Try looking up gas cap.It will ask is it California emission or not..If you run a single vent gas tank use the filler that was designed for the tank,likewise four vent gas tank,fuel filler and emission vent tube.If you start mixing parts you may run into a problem with tank not venting.I hope this helps you out.I if you want more info let me know.